MESON Chess Problem Database
Problem Display
PID: 6125 (1B6/p3n3/p4p2/N3RP2/2Pk4/3b3p/3Q1N1P/b1n4K w - - 0 1)
Schiffert, Gyorgy
1st HM., Grantham Journal, 1927
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qe3#
- 1...Sa2
- 2.Qxd3#
- 1...Se2
- 2.Qxd3#
- 1...Sb3
- 2.Qxd3#
- 1...Sd5
- 2.Rxd5#
- 1...Sxf5
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sg6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...fxe5
- 2.Bxa7#
- 1...Bb2
- Tries
- 1.Kg1?
- 1...Sxf5
- 2.Rd5#
- 1...fxe5
- 2.Bxa7#
- 1...Sd5
- 2.Rxd5#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qe3#
- 1...Sa2
- 2.Qxd3#
- 1...Sb3
- 2.Qxd3#
- 1...Sc6
- 2.Rd5#
- 1...Sg6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Se2+!
- 1...Sxf5
- 1.Sb3+?
- 1...Sxb3
- 2.Qxd3#
- 1...Kxc4!
- 1...Sxb3
- 1.Sc6+?
- 1...Kxc4
- 2.Qb4#
- 1...Sxc6!
- 1...Kxc4
- 1.Bc7?
- 1...Sxf5
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qe3#
- 1...Sa2
- 2.Qxd3#
- 1...Se2
- 2.Qxd3#
- 1...Sb3
- 2.Qxd3#
- 1...Sc6
- 2.Rd5#
- 1...Sg6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...fxe5!
- 1...Sxf5
- 1.Rb5?
- threat
- 2.Bxa7#
- 1...Sb3
- 2.Qxd3#
- 1...Sd5
- 2.Rxd5#
- 1...Sc6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...axb5!
- threat
- 1.Qxc1?
- threat
- 2.Sb3#
- 2.Qxa1#
- 1...Bxc4
- 2.Qe3#
- 2.Qxa1#
- 2.Qxc4#
- 1...fxe5
- 2.Sb3#
- 2.Bxa7#
- 1...Bc2
- 2.Qe3#
- 2.Qxa1#
- 1...Sd5
- 2.Sb3#
- 2.Rxd5#
- 1...Bb2
- 2.Sb3#
- 2.Qxb2#
- 1...Bc3
- 2.Qe3#
- 1...Bb1
- 2.Sb3#
- 2.Qe3#
- 1...Be4+!
- threat
- 1.Kg1?
- Keys
- 1.Qb4!
- 1...Be4+
- 2.Rxe4#
- 1...Bxc4
- 2.Qxc4#
- 1...Bxf5
- 2.c5#
- 1...Sxf5
- 2.Sc6#
- 1...fxe5
- 2.Bxa7#
- 1...Sb3
- 2.Sxb3#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qc5#
- 1...Bb1
- 2.c5#
- 1...Bf1
- 2.Re4#
- 1...Bc2
- 2.c5#
- 1...Be2
- 2.Re4#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sd5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Be4+
- 1.Qb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);SBLOCK::QAB1(B)
- S(b);N_GUARD::QAR1(B),XB(c)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD,XP(H)::R1(G)
- S(i);N_GUARD::R1(G)
- P(g);SBLOCK,XR(G)::B(I),XP(h)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(i);N_GUARD,XP(H)::R1(G)
- P(g);SBLOCK,XR(G)::B(I),XP(h)
- S(i);N_GUARD::R1(G),XS(i)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);SBLOCK::QAB1(B)
- S(b);N_GUARD::QAR1(B),XB(c)
- S(i);N_GUARD::R1(G)
- Refutation
- S(b);CHECK
- Try
- S(F);CHECK
- Vars
- S(b);XS(F)::QAR1(B),XB(c)
- Refutation
- K(e);N_SPINB(c),P-FLIGHT,XP(E)
- Try
- S(F);CHECK
- Vars
- K(e);N_SPINB(c),P-FLIGHT,XP(E)::QAR1(B)
- Refutation
- S(i);XS(F)
- Try
- B(I);
- Vars
- S(i);N_GUARD,XP(H)::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);SBLOCK::QAB1(B)
- S(b);N_GUARD::QAR1(B),XB(c)
- S(i);N_GUARD::R1(G)
- Refutation
- P(g);XR(G)
- Try
- R(G);
- Threat
- B(I),XP(h)
- Vars
- S(b);N_GUARD::QAR1(B),XB(c)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- Refutation
- P(f);XR(G)
- Try
- Q(B);N_PINB(c),XS(b)
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK::QAB1(B)
- Refutation
- B(c);CHECK
- Try
- Actual
- Q(B);N_PINB(c)
- Vars
- B(c);CHECK,N_GUARD::R1(G),XB(c)
- B(c);OGATE,P_SPINB(c),XP(E)::QAR1(B),XB(c)
- B(c);N_GUARD,XP(H)::QAR(B)+P(E)
- S(i);N_GUARD,XP(H)::S(F)
- P(g);SBLOCK,XR(G)::B(I),XP(h)
- S(b);N_GUARD::S(F),XS(b)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);SBLOCK::QAB1(B)
- B(c);N_GUARD::QAR(B)+P(E)
- B(c);N_GUARD::R1(G)
- S(b);N_GUARD::S(F)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
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